| lingual goiter | A tumour of thyroid tissue involving the embryonic rudiment at the base of the tongue. (05 Mar 2000) |
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| lingual hemiatrophy | Atrophy of one lateral half of the tongue. Synonym: lingual trophoneurosis. (05 Mar 2000) |
| lingual lobe | A U-or W-shaped ridge at the base of the lingual surface of the crown of the upper incisors and cuspid teeth, the lateral limbs running for a short distance along the linguoproximal line angles, the central portion just above the gingiva. Synonym: cingulum dentis, basal ridge, lingual lobe. (05 Mar 2000) |
| lingual lymph nodes | Lymph node along the lingual vein receiving drainage from the tongue (except tip); drain to submandibular lymph nodes. Synonym: nodi lymphatici linguales. (05 Mar 2000) |
| lingual mucosa | Mucous membrane of the tongue, the mucosa of the dorsum of the tongue appears velvety due to the presence of vast numbers of papillae; that of the inferior surface is smooth and thinner. Synonym: tunica mucosa linguae. (05 Mar 2000) |
| lingual nerve | <anatomy, nerve> A sensory branch of the mandibular nerve, which is part of the trigeminal (5th cranial) nerve. The lingual nerve carries general afferent fibres from the anterior two-thirds of the tongue, the floor of the mouth, and the mandibular gingivae. (12 Dec 1998) |
| lingual occlusion | Interdigitation of the teeth as seen from the internal or lingual aspect. See: linguoclusion. (05 Mar 2000) |
| lingual papilla | One of numerous variously shaped projections of the mucous membrane of the dorsum of the tongue. Synonym: papilla lingualis. The lingual portion of the gingiva filling the interproximal space between adjacent teeth; in molar and premolar areas, there may be separate lingual and buccal interdental papillae. See: interdental papilla. (05 Mar 2000) |
| lingual plate | A partial denture major connector formed as a lingual bar extended to cover the cingula of the lower anterior teeth. Synonym: lingual plate. (05 Mar 2000) |
| lingual plexus | An autonomic plexus on the artery of this name, derived from the external carotid plexus. Synonym: plexus lingualis. (05 Mar 2000) |
| lingual rest | A metallic extension onto the lingual surface of a tooth to provide support or indirect retention for a removable partial denture. (05 Mar 2000) |
| lingual retainers | <dentistry> A variation of the lingual arch going from cuspids to cuspid. (08 Jan 1998) |
| lingual salivary gland depression | An indentation on the lingual surface of the mandible within which a portion of the submandibular gland lies; it appears radiographically as a sharply circumscribed ovoid radiolucency between the mandibular canal and the inferior border of the posterior mandible. Synonym: Stafne bone cyst, static bone cyst. (05 Mar 2000) |
| lingual septum | The median vertical fibrous partition of the tongue merging posteriorly into the aponeurosis of the tongue. Synonym: septum linguae, septum of tongue. (05 Mar 2000) |
| lingual splint | One similar to the labial splint, but conforming to the inner aspect of the dental arch. (05 Mar 2000) |